Home / 8,621.52-12,920.13-4,926.30

Finding the Fourth Proportional to 8,621.52, 12,920.13 and 4,926.30

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Solution

The fourth proportional to 8,621.52, 12,920.13 and 4,926.30 is: 7,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.52 : 12,920.13 = 4,926.30 : x
  2. Step 2: Convert to fraction form
    8,621.52/12,920.13 = 4,926.30/x
  3. Step 3: Cross multiply
    8,621.52x = 12,920.13 × 4,926.30
  4. Step 4: Simplify right side
    8,621.52x = 63,648,436.42
  5. Step 5: Solve for x
    x = 63,648,436.42/8,621.52
  6. Step 6: Final answer
    x = 7,382.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.